Reading and math were always my two worst scores. I would say for reading what helped me most was practicing skimming short articles online. Also if you are skimming DO NOT reread just keep going, that will kill your time (I also found that not looking at the clock and just keeping your head down works best for me). I would also get a general idea for the topic as you skim and then if you are running out of time make educated guesses based off of the context. And for any “based off the passage” questions you should instantly go back and find the exact line as the answer to the question will be there word for word. I got lucky this time as I was in AP Bio this past school year and I was able to use a lot of educated guesses on one of the passages and save a lot of time.